121001001002011 has 32 divisors (see below), whose sum is σ = 131307468102720. Its totient is φ = 110841040128000.

The previous prime is 121001001001997. The next prime is 121001001002029. The reversal of 121001001002011 is 110200100100121.

It is a de Polignac number, because none of the positive numbers 2^k-121001001002011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121001001002051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1106199720 + ... + 1106309098.

It is an arithmetic number, because the mean of its divisors is an integer number (4103358378210).

Almost surely, 2^{121001001002011} is an apocalyptic number.

121001001002011 is a deficient number, since it is larger than the sum of its proper divisors (10306467100709).

121001001002011 is a wasteful number, since it uses less digits than its factorization.

121001001002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110847.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121001001002011 its reverse (110200100100121), we get a palindrome (231201101102132).

The spelling of 121001001002011 in words is "one hundred twenty-one trillion, one billion, one million, two thousand, eleven".